diff --git a/.gitignore b/.gitignore
index baaaa35..76c9938 100644
--- a/.gitignore
+++ b/.gitignore
@@ -41,4 +41,4 @@ cmake-build-*/
 .idea/
 
 # Vscode
-.vscode/
+.vscode/*
diff --git a/.vscode/ftp-kr.json b/.vscode/ftp-kr.json
deleted file mode 100644
index efafbc2..0000000
--- a/.vscode/ftp-kr.json
+++ /dev/null
@@ -1,16 +0,0 @@
-{
-    "host": "192.168.11.241",
-    "username": "cuiyiming",
-    "password": "070708",
-    "remotePath": "/home/cuiyiming/tfe3a",
-    "protocol": "sftp",
-    "port": 22,
-    "fileNameEncoding": "utf8",
-    "autoUpload": true,
-    "autoDelete": false,
-    "autoDownload": false,
-    "ignore": [
-        ".git",
-        "/.vscode"
-    ]
-}
diff --git a/.vscode/ftp-kr.sync.cache.json b/.vscode/ftp-kr.sync.cache.json
deleted file mode 100644
index 9a47dc9..0000000
--- a/.vscode/ftp-kr.sync.cache.json
+++ /dev/null
@@ -1,568 +0,0 @@
-{
-  "sftp://192.168.11.241:22@cuiyiming": {
-    "home": {
-      "cuiyiming": {
-        "tfe3a": {
-          ".editorconfig": {
-            "type": "-",
-            "size": 189,
-            "lmtime": 1536117600714,
-            "modified": false
-          },
-          ".gitattributes": {
-            "type": "-",
-            "size": 84,
-            "lmtime": 1536117600714,
-            "modified": false
-          },
-          ".gitignore": {
-            "type": "-",
-            "size": 374,
-            "lmtime": 1536117600714,
-            "modified": false
-          },
-          "CMakeLists.txt": {
-            "type": "-",
-            "size": 315,
-            "lmtime": 1536117600714,
-            "modified": false
-          },
-          "cache": {
-            "CMakeLists.txt": {
-              "type": "-",
-              "size": 0,
-              "lmtime": 1536117600714,
-              "modified": false
-            },
-            "include": {
-              "tango_cache_client.h": {
-                "type": "-",
-                "size": 1141,
-                "lmtime": 1536117600715,
-                "modified": false
-              }
-            }
-          },
-          "common": {
-            "CMakeLists.txt": {
-              "type": "-",
-              "size": 316,
-              "lmtime": 1536825136570,
-              "modified": false
-            },
-            "include": {
-              "tfe_future.h": {
-                "type": "-",
-                "size": 1294,
-                "lmtime": 1536313488202,
-                "modified": false
-              },
-              "tfe_http.h": {
-                "type": "-",
-                "size": 10017,
-                "lmtime": 1536825156626,
-                "modified": false
-              },
-              "tfe_plugin.h": {
-                "type": "-",
-                "size": 2045,
-                "lmtime": 1536825156627,
-                "modified": false
-              },
-              "tfe_proxy.h": {
-                "type": "-",
-                "size": 117,
-                "lmtime": 1536117600715,
-                "modified": false
-              },
-              "tfe_stat.h": {
-                "type": "-",
-                "size": 308,
-                "lmtime": 1536117600716,
-                "modified": false
-              },
-              "tfe_stream.h": {
-                "type": "-",
-                "size": 2677,
-                "lmtime": 1536117600716,
-                "modified": false
-              },
-              "tfe_types.h": {
-                "type": "-",
-                "size": 3152,
-                "lmtime": 1536905455105,
-                "modified": false
-              },
-              "tfe_utils.h": {
-                "type": "-",
-                "size": 4218,
-                "lmtime": 1536927858885,
-                "modified": false
-              },
-              "tfe_rpc.h": {
-                "type": "-",
-                "size": 521,
-                "lmtime": 1536915527236,
-                "modified": false
-              }
-            },
-            "src": {
-              "tfe_future.cpp": {
-                "type": "-",
-                "size": 6032,
-                "lmtime": 1536825136572,
-                "modified": false
-              },
-              "tfe_stat.cpp": {
-                "type": "-",
-                "size": 123,
-                "lmtime": 1536117600717,
-                "modified": false
-              },
-              "tfe_utils.cpp": {
-                "type": "-",
-                "size": 534,
-                "lmtime": 1536117600717,
-                "modified": false
-              },
-              "tfe_rpc.cpp": {
-                "type": "-",
-                "size": 7725,
-                "lmtime": 1536915527237,
-                "modified": false
-              },
-              "tfe_http.cpp": {
-                "type": "-",
-                "size": 2266,
-                "lmtime": 1536825156627,
-                "modified": false
-              },
-              "tfe_plugin.cpp": {
-                "type": "-",
-                "size": 610,
-                "lmtime": 1536313603978,
-                "modified": false
-              }
-            },
-            ".CMakeLists.txt.swp": {
-              "type": "-",
-              "size": 4096,
-              "lmtime": 1536313660869,
-              "modified": false
-            }
-          },
-          "platform": {
-            "CMakeLists.txt": {
-              "type": "-",
-              "size": 2574,
-              "lmtime": 1536915527238,
-              "modified": false
-            },
-            "include": {
-              "internal": {
-                "key_keeper.h": {
-                  "type": "-",
-                  "size": 710,
-                  "lmtime": 1536927858887,
-                  "modified": false
-                },
-                "kni_acceptor.h": {
-                  "type": "-",
-                  "size": 207,
-                  "lmtime": 1536117600718,
-                  "modified": false
-                },
-                "platform.h": {
-                  "type": "-",
-                  "size": 1908,
-                  "lmtime": 1536313603979,
-                  "modified": false
-                },
-                "proxy.h": {
-                  "type": "-",
-                  "size": 1178,
-                  "lmtime": 1536117600718,
-                  "modified": false
-                },
-                "ssl_sess_cache.h": {
-                  "type": "-",
-                  "size": 785,
-                  "lmtime": 1536117600719,
-                  "modified": false
-                },
-                "ssl_stream.h": {
-                  "type": "-",
-                  "size": 1371,
-                  "lmtime": 1536313603980,
-                  "modified": false
-                },
-                "ssl_utils.h": {
-                  "type": "-",
-                  "size": 6476,
-                  "lmtime": 1536927858887,
-                  "modified": false
-                },
-                "tcp_stream.h": {
-                  "type": "-",
-                  "size": 518,
-                  "lmtime": 1536117600720,
-                  "modified": false
-                }
-              }
-            },
-            "src": {
-              "key_keeper.cpp": {
-                "type": "-",
-                "size": 14236,
-                "lmtime": 1536927858888,
-                "modified": false
-              },
-              "kni_acceptor.cpp": {
-                "type": "-",
-                "size": 7906,
-                "lmtime": 1536117600721,
-                "modified": false
-              },
-              "main.cpp": {
-                "type": "-",
-                "size": 324,
-                "lmtime": 1536117600721,
-                "modified": false
-              },
-              "proxy.cpp": {
-                "type": "-",
-                "size": 7956,
-                "lmtime": 1536313603981,
-                "modified": false
-              },
-              "ssl_sess_cache.cpp": {
-                "type": "-",
-                "size": 9206,
-                "lmtime": 1536313603982,
-                "modified": false
-              },
-              "ssl_stream.cpp": {
-                "type": "-",
-                "size": 36309,
-                "lmtime": 1536927858889,
-                "modified": false
-              },
-              "ssl_utils.cc": {
-                "type": "-",
-                "size": 57284,
-                "lmtime": 1536927858890,
-                "modified": false
-              },
-              "tcp_stream.cpp": {
-                "type": "-",
-                "size": 20731,
-                "lmtime": 1536313603983,
-                "modified": false
-              },
-              ".tfe_rpc.cpp.swp": {
-                "type": "-",
-                "size": 4096,
-                "lmtime": 1536290616868,
-                "modified": false
-              },
-              ".key_keeper.cpp.swp": {
-                "type": "-",
-                "size": 4096,
-                "lmtime": 1536567592157,
-                "modified": false
-              },
-              "tfe_rpc.cpp": {
-                "type": "-",
-                "size": 9080,
-                "lmtime": 1536825131154,
-                "modified": false
-              },
-              ".ssl_utils.cc.swp": {
-                "type": "-",
-                "size": 4096,
-                "lmtime": 1536824844454,
-                "modified": false
-              },
-              ".ssl_.swp": {
-                "type": "-",
-                "size": 4096,
-                "lmtime": 1536824458902,
-                "modified": false
-              }
-            },
-            "test": {
-              "test_key_keeper.cpp": {
-                "type": "-",
-                "size": 1635,
-                "lmtime": 1536915434431,
-                "modified": false
-              },
-              "test_tfe_rpc.cpp": {
-                "type": "-",
-                "size": 6042,
-                "lmtime": 1536927858892,
-                "modified": false
-              },
-              "test_chello_parse.cpp": {
-                "type": "-",
-                "size": 7143,
-                "lmtime": 1536927858891,
-                "modified": false
-              },
-              ".test_chello_parse.cpp.swp": {
-                "type": "-",
-                "size": 4096,
-                "lmtime": 1536928089520,
-                "modified": false
-              }
-            }
-          },
-          "plugin": {
-            "CMakeLists.txt": {
-              "type": "-",
-              "size": 81,
-              "lmtime": 1536117600723,
-              "modified": false
-            },
-            "business": {
-              "CMakeLists.txt": {
-                "type": "-",
-                "size": 64,
-                "lmtime": 1536927858893,
-                "modified": false
-              },
-              "decrypt-mirroring": {
-                "CMakeLists.txt": {
-                  "type": "-",
-                  "size": 289,
-                  "lmtime": 1536117600723,
-                  "modified": false
-                },
-                "include": {
-                  "external": {
-                    "decrypt_mirror_plugin.h": {
-                      "type": "-",
-                      "size": 626,
-                      "lmtime": 1536117600724,
-                      "modified": false
-                    }
-                  },
-                  "internal": {
-                    "mirror_stream.h": {
-                      "type": "-",
-                      "size": 2067,
-                      "lmtime": 1536117600724,
-                      "modified": false
-                    },
-                    "mirror_stream_inl.h": {
-                      "type": "-",
-                      "size": 2774,
-                      "lmtime": 1536117600724,
-                      "modified": false
-                    },
-                    "sendpkt-inl.h": {
-                      "type": "-",
-                      "size": 4606,
-                      "lmtime": 1536117600724,
-                      "modified": false
-                    }
-                  }
-                },
-                "src": {
-                  "decrypt_mirror_plugin.cpp": {
-                    "type": "-",
-                    "size": 1494,
-                    "lmtime": 1536825156629,
-                    "modified": false
-                  },
-                  "mirror_stream.cpp": {
-                    "type": "-",
-                    "size": 24104,
-                    "lmtime": 1536927858894,
-                    "modified": false
-                  },
-                  "sendpkt.cpp": {
-                    "type": "-",
-                    "size": 11157,
-                    "lmtime": 1536117600725,
-                    "modified": false
-                  }
-                },
-                "test": {
-                  "test_deliver.c": {
-                    "type": "-",
-                    "size": 2373,
-                    "lmtime": 1536117600725,
-                    "modified": false
-                  },
-                  "test_deliver.h": {
-                    "type": "-",
-                    "size": 1,
-                    "lmtime": 1536117600725,
-                    "modified": false
-                  }
-                }
-              },
-              "pangu-http": {
-                "CMakeLists.txt": {
-                  "type": "-",
-                  "size": 159,
-                  "lmtime": 1536927858895,
-                  "modified": false
-                },
-                "pangu_http.cpp": {
-                  "type": "-",
-                  "size": 25142,
-                  "lmtime": 1536927858897,
-                  "modified": false
-                },
-                "pangu_logger.cpp": {
-                  "type": "-",
-                  "size": 4827,
-                  "lmtime": 1536927858898,
-                  "modified": false
-                },
-                "pangu_logger.h": {
-                  "type": "-",
-                  "size": 2283,
-                  "lmtime": 1536927858899,
-                  "modified": false
-                }
-              }
-            },
-            "platform": {
-              "CMakeLists.txt": {
-                "type": "-",
-                "size": 0,
-                "lmtime": 1536117600725,
-                "modified": false
-              }
-            },
-            "protocol": {
-              "CMakeLists.txt": {
-                "type": "-",
-                "size": 23,
-                "lmtime": 1536117600725,
-                "modified": false
-              },
-              "http": {
-                "CMakeLists.txt": {
-                  "type": "-",
-                  "size": 298,
-                  "lmtime": 1536313603985,
-                  "modified": false
-                },
-                "src": {
-                  "http.cpp": {
-                    "type": "-",
-                    "size": 1668,
-                    "lmtime": 1536313512009,
-                    "modified": false
-                  },
-                  "http_entry.cpp": {
-                    "type": "-",
-                    "size": 6874,
-                    "lmtime": 1536825156630,
-                    "modified": false
-                  },
-                  "http_half.cpp": {
-                    "type": "-",
-                    "size": 14144,
-                    "lmtime": 1536825156630,
-                    "modified": false
-                  }
-                },
-                "include": {
-                  "internal": {
-                    "http_common.h": {
-                      "type": "-",
-                      "size": 2767,
-                      "lmtime": 1536825156629,
-                      "modified": false
-                    },
-                    "http_half.h": {
-                      "type": "-",
-                      "size": 612,
-                      "lmtime": 1536313603986,
-                      "modified": false
-                    }
-                  }
-                }
-              }
-            }
-          },
-          "vendor": {
-            "CMakeLists.txt": {
-              "type": "-",
-              "size": 8808,
-              "lmtime": 1536927858900,
-              "modified": false
-            },
-            "MESA_prof_load-3b2bfd.tar.gz": {
-              "type": "-",
-              "size": 8125,
-              "lmtime": 1536117600726,
-              "modified": false
-            },
-            "check-0.12.0.tar.gz": {
-              "type": "-",
-              "size": 764043,
-              "lmtime": 1536117600730,
-              "modified": false
-            },
-            "googletest-release-1.8.0.tar.gz": {
-              "type": "-",
-              "size": 1281617,
-              "lmtime": 1536117600736,
-              "modified": false
-            },
-            "http-parser-2.8.1.tar.gz": {
-              "type": "-",
-              "size": 50731,
-              "lmtime": 1536117600737,
-              "modified": false
-            },
-            "libevent-2.1.8-stable.tar.gz": {
-              "type": "-",
-              "size": 1026485,
-              "lmtime": 1536117600739,
-              "modified": false
-            },
-            "nghttp2-1.32.0.tar.gz": {
-              "type": "-",
-              "size": 2216104,
-              "lmtime": 1536117600748,
-              "modified": false
-            },
-            "openssl-1.1.0h.tar.gz": {
-              "type": "-",
-              "size": 5422717,
-              "lmtime": 1536117600768,
-              "modified": false
-            },
-            "cJSON-1.7.7.tar.gz": {
-              "type": "-",
-              "size": 345681,
-              "lmtime": 1536825136581,
-              "modified": false
-            },
-            "librdkafka-0.11.5.tar.gz": {
-              "type": "-",
-              "size": 1984510,
-              "lmtime": 1536927858916,
-              "modified": false
-            }
-          },
-          "build": {},
-          ".gitlab-ci.yml": {
-            "type": "-",
-            "size": 125,
-            "lmtime": 1536905455105,
-            "modified": false
-          }
-        }
-      }
-    }
-  },
-  "$version": 1
-}
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
deleted file mode 100644
index b6aec46..0000000
--- a/.vscode/settings.json
+++ /dev/null
@@ -1,31 +0,0 @@
-{
-    "files.associations": {
-        "iterator": "cpp",
-        "string": "cpp",
-        "string_view": "cpp",
-        "__locale": "cpp",
-        "ios": "cpp",
-        "__debug": "cpp",
-        "exception": "cpp",
-        "memory": "cpp",
-        "stdexcept": "cpp",
-        "typeinfo": "cpp",
-        "utility": "cpp",
-        "__bit_reference": "cpp",
-        "__functional_base": "cpp",
-        "algorithm": "cpp",
-        "atomic": "cpp",
-        "bitset": "cpp",
-        "chrono": "cpp",
-        "functional": "cpp",
-        "limits": "cpp",
-        "ratio": "cpp",
-        "system_error": "cpp",
-        "tuple": "cpp",
-        "type_traits": "cpp",
-        "initializer_list": "cpp",
-        "istream": "cpp",
-        "locale": "cpp",
-        "new": "cpp"
-    }
-}
\ No newline at end of file